基于熵权TOPSIS法的丛植植物视觉观赏性量化研究

Quantitative Study on the Visual Ornamental Quality of Group Planting Plants by Using the Weighted TOPSIS Method

为避免城市更新中出现的对丛植植物的反复不合理更新,以丛植植物的视觉观赏性为对象,从尺度适宜性、种类丰富性、结构丰富性、视觉复杂性和色彩丰富性5项量化指标出发提出9项影响因子,构建评价体系,并采用基于熵权法的TOPSIS法对51个样本进行综合量化研究。结果显示:在对丛植植物的视觉观赏性影响程度上,矮灌木类地被植物体积占有率的影响最大,而视觉熵的影响最小;在配置手法上,与多元素搭配的丛植植物的观赏性优于与单元素搭配的丛植植物;与单元素搭配的类型中,纯植物搭配的视觉观赏性优于植物与地形、建筑、道路的搭配。

In order to avoid repeated and unreasonable renewal of group planting plants in urban renewal,the visual ornamentation of group planting plants is taken as the object,based on the 5 quantitative evaluation indicators of visual appreciation,including scale suitability,variety richness,structure richness,visual complexity and color richness,9 impact factors are proposed to construct an evaluation system.The method of Technique for Order Preference by Similarity to an Ideal Solution(TOPSIS)based on entropy weight method is used to comprehensively quantify 51 samples.The results show that the volume occupancy rate of shrubs has the greatest influence on the visual ornamentation of group planting plants,and visual entropy has the least effect on the visual ornamentation of group planting plants.In the configuration methods,the ornamental quality of group planting plants matched with multiple elements is better than that of group planting plants matched with single elements.And among the types that match with single elements,the visual ornamentation of pure plants is better than that of plants and terrain,buildings,or roads.